On Fri, 6 May 2016, Andi Kleen wrote: > For SMT specific workarounds it is useful to know if SMT is active > on any online CPU in the system. This currently requires a loop > over all online CPUs. > > Add a global variable that is updated with the maximum number > of smt threads on any CPU on online/offline, and use it for > topology_max_smt_threads() > > The single call is easier to use than a loop. > > Not exported to user space because user space already can use > the existing sibling interfaces to find this out.
Reviewed-by: Thomas Gleixner <t...@linutronix.de>
